package com.codingxyz.simple.lock;


import java.util.concurrent.TimeUnit;

class HoldLockThread implements Runnable {

    private String lockA;

    private String lockB;

    public HoldLockThread(String lockA, String lockB) {
        this.lockA = lockA;
        this.lockB = lockB;
    }

    @Override
    public void run() {

        synchronized (lockA){
            System.out.println(Thread.currentThread().getName() +" \t 自己持有 ："+lockA+" \t 尝试获得 ： "+lockB);

            try {
                TimeUnit.SECONDS.sleep(2);
            }catch (Exception e){
                e.printStackTrace();
            }

            synchronized (lockB){
                System.out.println(Thread.currentThread().getName() +" \t 自己持有 ："+lockB+" \t 尝试获得 ： "+lockA);
            }
        }
    }
}

public class DeadLockDemo {

    public static void main(String[] args) {
        String lockA = "lockA";
        String lockB = "lockB";

        new Thread(new HoldLockThread(lockA,lockB),"AAAA").start();
        new Thread(new HoldLockThread(lockB,lockA),"BBBB").start();


    }
}
